I just started watching House Of Cards, it's a netflix original season that just came out and the entire first season (13 episodes) is available on netflix streaming.
How I met your mother is good, same with Big Bang theory, but it depends what your looking for! Family guy is another one that's great to watch, along with all Seth McFarlane's other creations, but if your not looking for comedy then this probably isn't helpful
Entourage, never gave it a chance, but decided to buy the first episode on amazon and was hooked. Since I have bought the first season on amazon instant video and ordered the 8 season box set off amazon.